Expression of BAG1 is associated with prognosis in kidney renal clear cell carcinoma based on bioinformatics

BMC Cancer

Hongrong Wu¹  Yuejun He²  Qiong Guo³  Wanbei Guo⁴  Minjing Liu⁴  Guozhao Meng⁴ 

[1] Department of Pathology, the Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China;Institute of Basic Disease Sciences, XiangNan University, Chenzhou, Hunan Province, China;Department of Supervision, Baiyun International Airport Customs’ Inspection, Guangzhou, China;Department of Urology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, No 61 West Liberation Road, 410005, Changsha, Hunan, China;Institute of Basic Disease Sciences, XiangNan University, Chenzhou, Hunan Province, China;

关键词: BAG1;    Prognosis;    KIRC;    Fatty acid metabolism;    Oxidative phosphorylation;   

DOI  :  10.1186/s12885-021-07874-w

来源: Springer

【 摘 要 】

BackgroundBCL2 associated Athano-Gene 1 (BAG1) has been described to be involved in the development and progression of cancer. But the role of BAG1 in kidney renal clear cell carcinoma (KIRC) has remained largely unknown.MethodsWe performed bioinformatic analysis of data from TCGA and GEO dataset. The role of BAG1 in KIRC was explored by Logistic and Cox regression model. The molecular mechanisms of BAG1 was revealed by GSEA.ResultsThe current study found that the KIRC tumor samples have a low level of BAG1 mRNA expression compared to the matched normal tissues based on TCGA data and GEO databases. Low expression of BAG1 in KIRC was significantly associated with Sex, clinical pathological stage, tumor-node-metastasis (TNM) stage, hemoglobin levels, cancer status and history of neoadjuvant treatment. Kaplan-Meier survival analysis indicated that KIRC patients with BAG1 high expression have a longer survival time than those with BAG1 low expression (p < 0.000). Cox regression analysis showed that BAG1 remained independently associated with overall survival, with a hazard ratio (HR) of 1.75(CI:1.05–2.90; p = 0.029). GSEA indicated that the signaling pathways including fatty acid metabolism and oxidative phosphorylation were differentially enriched in high BAG1 expression phenotype.ConclusionsThese findings suggested that BAG1 expression may act as a potential favorable prognostic marker and challenging therapeutic target.

【 授权许可】

CC BY